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Source file src/cloud.google.com/go/storage/control/apiv2/auxiliary.go

Documentation: cloud.google.com/go/storage/control/apiv2

     1  // Copyright 2024 Google LLC
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     https://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  // Code generated by protoc-gen-go_gapic. DO NOT EDIT.
    16  
    17  package control
    18  
    19  import (
    20  	"context"
    21  	"time"
    22  
    23  	"cloud.google.com/go/longrunning"
    24  	controlpb "cloud.google.com/go/storage/control/apiv2/controlpb"
    25  	gax "github.com/googleapis/gax-go/v2"
    26  	"google.golang.org/api/iterator"
    27  )
    28  
    29  // RenameFolderOperation manages a long-running operation from RenameFolder.
    30  type RenameFolderOperation struct {
    31  	lro *longrunning.Operation
    32  }
    33  
    34  // Wait blocks until the long-running operation is completed, returning the response and any errors encountered.
    35  //
    36  // See documentation of Poll for error-handling information.
    37  func (op *RenameFolderOperation) Wait(ctx context.Context, opts ...gax.CallOption) (*controlpb.Folder, error) {
    38  	var resp controlpb.Folder
    39  	if err := op.lro.WaitWithInterval(ctx, &resp, time.Minute, opts...); err != nil {
    40  		return nil, err
    41  	}
    42  	return &resp, nil
    43  }
    44  
    45  // Poll fetches the latest state of the long-running operation.
    46  //
    47  // Poll also fetches the latest metadata, which can be retrieved by Metadata.
    48  //
    49  // If Poll fails, the error is returned and op is unmodified. If Poll succeeds and
    50  // the operation has completed with failure, the error is returned and op.Done will return true.
    51  // If Poll succeeds and the operation has completed successfully,
    52  // op.Done will return true, and the response of the operation is returned.
    53  // If Poll succeeds and the operation has not completed, the returned response and error are both nil.
    54  func (op *RenameFolderOperation) Poll(ctx context.Context, opts ...gax.CallOption) (*controlpb.Folder, error) {
    55  	var resp controlpb.Folder
    56  	if err := op.lro.Poll(ctx, &resp, opts...); err != nil {
    57  		return nil, err
    58  	}
    59  	if !op.Done() {
    60  		return nil, nil
    61  	}
    62  	return &resp, nil
    63  }
    64  
    65  // Metadata returns metadata associated with the long-running operation.
    66  // Metadata itself does not contact the server, but Poll does.
    67  // To get the latest metadata, call this method after a successful call to Poll.
    68  // If the metadata is not available, the returned metadata and error are both nil.
    69  func (op *RenameFolderOperation) Metadata() (*controlpb.RenameFolderMetadata, error) {
    70  	var meta controlpb.RenameFolderMetadata
    71  	if err := op.lro.Metadata(&meta); err == longrunning.ErrNoMetadata {
    72  		return nil, nil
    73  	} else if err != nil {
    74  		return nil, err
    75  	}
    76  	return &meta, nil
    77  }
    78  
    79  // Done reports whether the long-running operation has completed.
    80  func (op *RenameFolderOperation) Done() bool {
    81  	return op.lro.Done()
    82  }
    83  
    84  // Name returns the name of the long-running operation.
    85  // The name is assigned by the server and is unique within the service from which the operation is created.
    86  func (op *RenameFolderOperation) Name() string {
    87  	return op.lro.Name()
    88  }
    89  
    90  // FolderIterator manages a stream of *controlpb.Folder.
    91  type FolderIterator struct {
    92  	items    []*controlpb.Folder
    93  	pageInfo *iterator.PageInfo
    94  	nextFunc func() error
    95  
    96  	// Response is the raw response for the current page.
    97  	// It must be cast to the RPC response type.
    98  	// Calling Next() or InternalFetch() updates this value.
    99  	Response interface{}
   100  
   101  	// InternalFetch is for use by the Google Cloud Libraries only.
   102  	// It is not part of the stable interface of this package.
   103  	//
   104  	// InternalFetch returns results from a single call to the underlying RPC.
   105  	// The number of results is no greater than pageSize.
   106  	// If there are no more results, nextPageToken is empty and err is nil.
   107  	InternalFetch func(pageSize int, pageToken string) (results []*controlpb.Folder, nextPageToken string, err error)
   108  }
   109  
   110  // PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
   111  func (it *FolderIterator) PageInfo() *iterator.PageInfo {
   112  	return it.pageInfo
   113  }
   114  
   115  // Next returns the next result. Its second return value is iterator.Done if there are no more
   116  // results. Once Next returns Done, all subsequent calls will return Done.
   117  func (it *FolderIterator) Next() (*controlpb.Folder, error) {
   118  	var item *controlpb.Folder
   119  	if err := it.nextFunc(); err != nil {
   120  		return item, err
   121  	}
   122  	item = it.items[0]
   123  	it.items = it.items[1:]
   124  	return item, nil
   125  }
   126  
   127  func (it *FolderIterator) bufLen() int {
   128  	return len(it.items)
   129  }
   130  
   131  func (it *FolderIterator) takeBuf() interface{} {
   132  	b := it.items
   133  	it.items = nil
   134  	return b
   135  }
   136  
   137  // ManagedFolderIterator manages a stream of *controlpb.ManagedFolder.
   138  type ManagedFolderIterator struct {
   139  	items    []*controlpb.ManagedFolder
   140  	pageInfo *iterator.PageInfo
   141  	nextFunc func() error
   142  
   143  	// Response is the raw response for the current page.
   144  	// It must be cast to the RPC response type.
   145  	// Calling Next() or InternalFetch() updates this value.
   146  	Response interface{}
   147  
   148  	// InternalFetch is for use by the Google Cloud Libraries only.
   149  	// It is not part of the stable interface of this package.
   150  	//
   151  	// InternalFetch returns results from a single call to the underlying RPC.
   152  	// The number of results is no greater than pageSize.
   153  	// If there are no more results, nextPageToken is empty and err is nil.
   154  	InternalFetch func(pageSize int, pageToken string) (results []*controlpb.ManagedFolder, nextPageToken string, err error)
   155  }
   156  
   157  // PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
   158  func (it *ManagedFolderIterator) PageInfo() *iterator.PageInfo {
   159  	return it.pageInfo
   160  }
   161  
   162  // Next returns the next result. Its second return value is iterator.Done if there are no more
   163  // results. Once Next returns Done, all subsequent calls will return Done.
   164  func (it *ManagedFolderIterator) Next() (*controlpb.ManagedFolder, error) {
   165  	var item *controlpb.ManagedFolder
   166  	if err := it.nextFunc(); err != nil {
   167  		return item, err
   168  	}
   169  	item = it.items[0]
   170  	it.items = it.items[1:]
   171  	return item, nil
   172  }
   173  
   174  func (it *ManagedFolderIterator) bufLen() int {
   175  	return len(it.items)
   176  }
   177  
   178  func (it *ManagedFolderIterator) takeBuf() interface{} {
   179  	b := it.items
   180  	it.items = nil
   181  	return b
   182  }
   183  

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